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Guias sobre testes de pagamento e dados de cartão
Guias práticos e verificados para desenvolvedores, equipes de QA e lojistas: como funcionam os números de cartão, como validá-los e como proteger o seu checkout.
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Números de cartão
O que significam os dígitos, os códigos de segurança e a validade.
Prevenção de fraude
Detecte números inválidos e bloqueie ataques de teste de cartões.
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Guias para desenvolvedores
Código de validação, regex e IBAN para seus formulários.
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Mais guias (em inglês)
Testing payments
3-D Secure testing explained
Frictionless vs challenge flows, the outcomes to test, and official 3DS test cards for six gateways with their quirks.
10 min
BIN & issuers
6-digit vs 8-digit BINs: the ISO/IEC 7812 change explained
Why issuer prefixes grew to eight digits, the 2022 network timeline, PCI DSS truncation rules and a migration checklist.
7 min
Card numbers explained
Card expiry dates: formats, validation and edge cases
MM/YY parsing, the last-day-of-month rule, time zones, autofill attributes and how gateways treat expiry in test mode.
8 min
Fraud prevention for merchants
Card-testing fraud: how merchants detect and stop it
Recognize an enumeration attack on your checkout, then shut it down with bot protection, velocity limits, CVV/AVS and 3-D Secure.
9 min
Card numbers explained
CVV vs CVC vs CID: card security codes explained
The names each network uses for the security code, how it is generated, how to validate it, and the PCI DSS rule on storing it.
8 min
Developer how-tos
IBAN explained: structure, check digits and test IBANs
Country code, check digits and BBAN, a worked mod-97 example, lengths by country, code, and safe IBANs for testing.
9 min
Testing payments
How to test PayPal and Braintree sandbox payments
Sandbox accounts, CCREJECT name triggers, Braintree’s amount-based declines, CVV/AVS values and 3D Secure test cards.
9 min
Testing payments
How to test a Stripe checkout end to end
Sandbox keys, test cards for every outcome, 3D Secure, Radar and webhooks with the Stripe CLI, plus a go-live checklist.
9 min
Developer how-tos
Test data and PCI DSS: keeping real card data out of non-production
PCI DSS 6.5.5 and 6.5.6 in practice: synthetic card data, gateway test cards, log scrubbing, PAN scanning and safe staging copies.
8 min
Card numbers explained
Virtual credit cards explained: how real VCCs work and when to use one
Real virtual cards from banks and fintechs: single-use and merchant-locked numbers, limits, wallet tokens, and when to use one.
8 min
BIN & issuers
What is a BIN number, and what does a BIN lookup tell you?
BIN vs IIN, the first digit, network ranges, and what a BIN lookup can and can’t tell a merchant or developer.
8 min
Escrito para desenvolvedores, equipes de QA e lojistas. Os números gerados são dados de teste: não são cartões reais e não servem para pagar.
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